1515101 - Cell "double" borders are being filled in when table style "border-collapse" is set to "collapse"

Status: RESOLVED DUPLICATE of bug 1521066

(Core :: Layout: Tables, defect, P3)

Description

[rob.mossefin]

Attachment: Example HTML showing rendering issue

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0

Steps to reproduce:

On Firefox in Windows 10, create a table with "border-collapse" set to "collapse". Apply a "double" bottom-border (of any thickness) to an individual cell (<td>) in the table.


Actual results:

The cell's double border renders as a solid single thick line in Firefox (however thick the double border was set to be).


Expected results:

The cell's double border should render as two distinct lines regardless of how border-collapse is set. This matches rendering in other browsers and in previous versions of Firefox.

Comment 1

[rob.mossefin]

Attachment: Example of screen rendering of issue

Comment 2

[Timea Cernea [:tbabos][inactive]]

Reproduced the issue on latest Nightly, Firefox Beta and Firefox Release on Windows 10 x64. 
Thanks for the report!

Comment 3

[Emilio Cobos Álvarez (:emilio)]

We really need to run mozregression while triaging bugs...